litespeedtech / litespeedtech/lscache_wp

Object Cache is making the website slow

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Dominant language
PHP
Stars
257
Forks
123
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Description

Hello.

Since our upgrade to v3.0.0-rc12, just enabling Object Cache with Memcached Extension is making our backend superslow. We are talking about +6secondes loading time with Object Cache. Disabling it makes the loading instant.

PHP version : https://monosnap.com/direct/PHuZ0KXhZV0HhX6WGX5j8iZP7b1g3W
Memcached settings : https://monosnap.com/direct/lBBGFrQ3y0nUPo7gZgjcwqqn9os4hF

Report number: VGEGVIWD
Report date: 04/06/2020 00:16:40

Example of a slowed page load :
https://pastebin.com/BZg9sFbQ

Any idea what's going on here? Thanks

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source file or test is named. Start by reviewing the linked slow-page trace, Memcached settings, PHP-version report, and report VGEGVIWD, then compare Object Cache enabled versus disabled on v3.0.0-rc12. Done means identifying the regression or configuration cause and removing the reported six-second delay.

Written by the indexing model from the issue text.

Assessment

Tech stack
memcached, php, wordpress
Domain
backend, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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